Australia may face a complaint at the World Trade Organization over its decision to ban trademarks and logos on tobacco products, according to two people with direct knowledge of the matter.

The complaint, which says the plain-packaging law violates global intellectual-property rules, will probably be lodged with the Geneva-based trade arbiter this month, as soon as this week, said one person. At least three governments including Ukraine will be involved, said the other person. They declined to be identified because the complaint isn’t public.